books.google.com - What constitutes enjoyment of life? Optimal Experience: Psychological Studies of Flow in Consciousness offers a comprehensive survey of theoretical and empirical investigations of the "flow" experience, a desirable or optimal state of consciousness that enhances a person's psychic state. "Flow" can be...https://books.google.com/books/about/Optimal_Experience.html?id=lNt6bdfoyxQC&utm_source=gb-gplus-shareOptimal Experience